NC52502
9H-Purin-6-amine, 9-[3-O-[3,4-bis-O-(1,5-dihydro-3-oxido-2,4,3-benzodioxaphosphepin-3-yl)-2,6-bis-O-(phenylmethyl)-α-D-glucopyranosyl]-2-O-(1,5-dihydro-3-oxido-2,4,3-benzodioxaphosphepin-3-yl)-5,6,7-trideoxy-7-phenyl-β-D-ribo-heptofuranosyl]-